<template>
  <div>
    <div class="gva-search-box">
      <el-form ref="elSearchFormRef" :inline="true" :model="searchInfo" class="demo-form-inline" @keyup.enter="onSubmit">
        <el-form-item label="创建日期" prop="createdAtRange">
          <template #label>
            <span>
              创建日期
              <el-tooltip content="搜索范围是开始日期（包含）至结束日期（不包含）">
                <el-icon><QuestionFilled /></el-icon>
              </el-tooltip>
            </span>
          </template>

          <el-date-picker
              v-model="searchInfo.createdAtRange"
              class="w-[380px]"
              type="datetimerange"
              range-separator="至"
              start-placeholder="开始时间"
              end-placeholder="结束时间"
          />
        </el-form-item>

        <el-form-item label="型号" prop="eroPartModel">
          <el-input v-model="searchInfo.eroPartModel" placeholder="搜索条件" />
        </el-form-item>

        <el-form-item label="编码" prop="eroPartId">
          <el-input v-model="searchInfo.eroPartId" placeholder="搜索条件" />
        </el-form-item>


        <template v-if="showAllQuery">
          <!-- 将需要控制显示状态的查询条件添加到此范围内 -->
        </template>

        <el-form-item>
          <el-button type="primary" icon="search" @click="onSubmit">查询</el-button>
          <el-button icon="refresh" @click="onReset">重置</el-button>
          <el-button link type="primary" icon="arrow-down" @click="showAllQuery=true" v-if="!showAllQuery">展开</el-button>
          <el-button link type="primary" icon="arrow-up" @click="showAllQuery=false" v-else>收起</el-button>
        </el-form-item>
      </el-form>
    </div>

    <!-- 新增：型号统计面板 -->
    <div class="gva-statistics-panel">
      <div class="stat-card-container">
        <!-- 总型号数量卡片 -->
        <el-card class="stat-card">
          <div class="stat-card-header">
            <span>易损件总数量</span>
            <el-icon class="icon-large"><Document /></el-icon>
          </div>
          <div class="stat-card-content">
            <div class="stat-value">{{ modelStats.totalModels }}</div>
            <div class="stat-trend">
              <span class="trend-text">较上月 <span class="trend-up">+{{ modelStats.monthlyGrowth }}%</span></span>
            </div>
          </div>
        </el-card>

        <!-- 型号使用次数统计卡片 -->
        <el-card class="stat-card">
          <div class="stat-card-header">
            <span>平均使用次数</span>
            <el-icon class="icon-large"><Histogram /></el-icon>
          </div>
          <div class="stat-card-content">
            <div class="stat-value">{{ modelStats.avgUseTimes.toFixed(1) }}</div>
            <div class="stat-trend">
              <span class="trend-text">较上月 <span class="trend-down">-{{ modelStats.useTimesChange }}%</span></span>
            </div>
          </div>
        </el-card>

        <!-- 型号活跃天数卡片 -->
        <el-card class="stat-card">
          <div class="stat-card-header">
            <span>平均活跃天数</span>
            <el-icon class="icon-large"><Calendar /></el-icon>
          </div>
          <div class="stat-card-content">
            <div class="stat-value">{{ modelStats.avgActiveDays.toFixed(1) }}</div>
            <div class="stat-trend">
              <span class="trend-text">较上月 <span class="trend-up">+{{ modelStats.activeDaysChange }}%</span></span>
            </div>
          </div>
        </el-card>
      </div>

      <!-- 图表卡片 -->
      <el-card class="chart-card">
        <div class="chart-card-header">
          <span>易损件型号分布统计</span>
          <el-radio-group v-model="chartType" size="small">
            <el-radio-button label="pie">饼图</el-radio-button>
            <el-radio-button label="bar">柱状图</el-radio-button>
          </el-radio-group>
        </div>
        <div class="chart-container" ref="modelChartRef"></div>
      </el-card>

      <!-- 热门型号卡片 -->
      <el-card class="popular-models-card">
        <div class="card-header">
          <span>易损件更换排行</span>
          <el-button size="small" type="primary" @click="viewAllModels">查看全部</el-button>
        </div>
        <div class="popular-models-list">
          <div v-for="(model, index) in popularModels" :key="model.eroPartModel" class="model-item">
            <div class="model-rank">{{ index + 1 }}</div>
            <div class="model-info">
              <div class="model-name">{{ model.eroPartModel }}</div>
              <div class="model-metrics">
                <span>使用次数: {{ model.useTimes }}</span>
                <span>活跃天数: {{ model.operationDays }}</span>
              </div>
            </div>
          </div>
        </div>
      </el-card>
    </div>

    <div class="gva-table-box">
      <div class="gva-btn-list">
        <el-button v-auth="btnAuth.add" type="primary" icon="plus" @click="openDialog()">新增</el-button>
        <el-button v-auth="btnAuth.batchDelete" icon="delete" style="margin-left: 10px;" :disabled="!multipleSelection.length" @click="onDelete">删除</el-button>
        <ExportTemplate v-auth="btnAuth.exportTemplate" template-id="epl_Erotable" />
        <ExportExcel v-auth="btnAuth.exportExcel" template-id="epl_Erotable" filterDeleted/>
        <ImportExcel v-auth="btnAuth.importExcel" template-id="epl_Erotable" @on-success="getTableData" />
      </div>
      <el-table
          ref="multipleTable"
          style="width: 100%"
          tooltip-effect="dark"
          :data="tableData"
          row-key="ID"
          @selection-change="handleSelectionChange"
      >
        <el-table-column type="selection" width="55" />

        <el-table-column sortable align="left" label="日期" prop="CreatedAt" width="180">
          <template #default="scope">{{ formatDate(scope.row.CreatedAt) }}</template>
        </el-table-column>

        <el-table-column align="left" label="型号" prop="eroPartModel" width="120" />

        <el-table-column align="left" label="编码" prop="eroPartId" width="120" />

        <el-table-column align="left" label="设备使用次数" prop="useTimes" width="120" />

        <el-table-column align="left" label="天数" prop="operationDays" width="120" />

        <el-table-column align="left" label="首次安装日期" prop="operationDate" width="180">
          <template #default="scope">{{ formatDate(scope.row.operationDate) }}</template>
        </el-table-column>
        <el-table-column align="left" label="最后更新时间" prop="syncDate" width="180">
          <template #default="scope">{{ formatDate(scope.row.syncDate) }}</template>
        </el-table-column>
        <el-table-column align="left" label="操作" fixed="right" :min-width="appStore.operateMinWith">
          <template #default="scope">
            <el-button v-auth="btnAuth.info" type="primary" link class="table-button" @click="getDetails(scope.row)"><el-icon style="margin-right: 5px"><InfoFilled /></el-icon>查看</el-button>
            <el-button v-auth="btnAuth.edit" type="primary" link icon="edit" class="table-button" @click="updateErotableFunc(scope.row)">编辑</el-button>
            <el-button  v-auth="btnAuth.delete" type="primary" link icon="delete" @click="deleteRow(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <div class="gva-pagination">
        <el-pagination
            layout="total, sizes, prev, pager, next, jumper"
            :current-page="page"
            :page-size="pageSize"
            :page-sizes="[10, 30, 50, 100]"
            :total="total"
            @current-change="handleCurrentChange"
            @size-change="handleSizeChange"
        />
      </div>
    </div>
    <el-drawer destroy-on-close :size="appStore.drawerSize" v-model="dialogFormVisible" :show-close="false" :before-close="closeDialog">
      <template #header>
        <div class="flex justify-between items-center">
          <span class="text-lg">{{type==='create'?'新增':'编辑'}}</span>
          <div>
            <el-button :loading="btnLoading" type="primary" @click="enterDialog">确 定</el-button>
            <el-button @click="closeDialog">取 消</el-button>
          </div>
        </div>
      </template>

      <el-form :model="formData" label-position="top" ref="elFormRef" :rules="rule" label-width="80px">
        <el-form-item label="型号:" prop="eroPartModel">
          <el-input v-model="formData.eroPartModel" :clearable="true" placeholder="请输入型号" />
        </el-form-item>
        <el-form-item label="编码:" prop="eroPartId">
          <el-input v-model="formData.eroPartId" :clearable="true" placeholder="请输入编码" />
        </el-form-item>
        <el-form-item label="设备使用次数:" prop="useTimes">
          <el-input v-model.number="formData.useTimes" :clearable="true" placeholder="请输入设备使用次数" />
        </el-form-item>
        <el-form-item label="天数:" prop="operationDays">
          <el-input v-model.number="formData.operationDays" :clearable="true" placeholder="请输入天数" />
        </el-form-item>
        <el-form-item label="首次安装日期:" prop="operationDate">
          <el-date-picker v-model="formData.operationDate" type="date" style="width:100%" placeholder="选择日期" :clearable="true" />
        </el-form-item>
        <el-form-item label="最后更新时间:" prop="syncDate">
          <el-date-picker v-model="formData.syncDate" type="date" style="width:100%" placeholder="选择日期" :clearable="true" />
        </el-form-item>
      </el-form>
    </el-drawer>

    <el-drawer destroy-on-close :size="appStore.drawerSize" v-model="detailShow" :show-close="true" :before-close="closeDetailShow" title="查看">
      <el-descriptions :column="1" border>
        <el-descriptions-item label="型号">
          {{ detailFrom.eroPartModel }}
        </el-descriptions-item>
        <el-descriptions-item label="编码">
          {{ detailFrom.eroPartId }}
        </el-descriptions-item>
        <el-descriptions-item label="设备使用次数">
          {{ detailFrom.useTimes }}
        </el-descriptions-item>
        <el-descriptions-item label="天数">
          {{ detailFrom.operationDays }}
        </el-descriptions-item>
        <el-descriptions-item label="首次安装日期">
          {{ detailFrom.operationDate }}
        </el-descriptions-item>
        <el-descriptions-item label="最后更新时间">
          {{ detailFrom.syncDate }}
        </el-descriptions-item>
      </el-descriptions>
    </el-drawer>

  </div>
</template>

<script setup>
import {
  createErotable,
  deleteErotable,
  deleteErotableByIds,
  updateErotable,
  findErotable,
  getErotableList
} from '@/api/epl/erotable'

// 全量引入格式化工具 请按需保留
import { getDictFunc, formatDate, formatBoolean, filterDict ,filterDataSource, returnArrImg, onDownloadFile } from '@/utils/format'
import { ElMessage, ElMessageBox } from 'element-plus'
import { ref, reactive, onMounted, onUpdated } from 'vue'
// 引入按钮权限标识
import { useBtnAuth } from '@/utils/btnAuth'
import { useAppStore } from "@/pinia"
import { Document, Histogram, ArrowRight } from '@element-plus/icons-vue'

// 导出组件
import ExportExcel from '@/components/exportExcel/exportExcel.vue'
// 导入组件
import ImportExcel from '@/components/exportExcel/importExcel.vue'
// 导出模板组件
import ExportTemplate from '@/components/exportExcel/exportTemplate.vue'

// 引入图表库
import * as echarts from 'echarts/core'
import { BarChart, PieChart } from 'echarts/charts'
import { TooltipComponent, LegendComponent, TitleComponent } from 'echarts/components'
import { CanvasRenderer } from 'echarts/renderers'

// 注册图表组件
echarts.use([
  BarChart,
  PieChart,
  TooltipComponent,
  LegendComponent,
  TitleComponent,
  CanvasRenderer
])

defineOptions({
  name: 'Erotable'
})
// 按钮权限实例化
const btnAuth = useBtnAuth()

// 提交按钮loading
const btnLoading = ref(false)
const appStore = useAppStore()

// 控制更多查询条件显示/隐藏状态
const showAllQuery = ref(false)

// 自动化生成的字典（可能为空）以及字段
const formData = ref({
  eroPartModel: '',
  eroPartId: '',
  useTimes: undefined,
  operationDays: undefined,
  operationDate: new Date(),
  syncDate: new Date(),
})

// 图表类型
const chartType = ref('pie')
const modelChartRef = ref(null)
let modelChart = null

// 型号统计数据
const modelStats = ref({
  totalModels: 0,
  avgUseTimes: 0,
  avgActiveDays: 0,
  monthlyGrowth: 0,
  useTimesChange: 0,
  activeDaysChange: 0
})

// 热门型号
const popularModels = ref([])

// 验证规则
const rule = reactive({})

const elFormRef = ref()
const elSearchFormRef = ref()

// =========== 表格控制部分 ===========
const page = ref(1)
const total = ref(0)
const pageSize = ref(10)
const tableData = ref([])
const searchInfo = ref({})
// 重置
const onReset = () => {
  searchInfo.value = {}
  getTableData()
}

// 搜索
const onSubmit = () => {
  elSearchFormRef.value?.validate(async(valid) => {
    if (!valid) return
    page.value = 1
    getTableData()
  })
}

// 分页
const handleSizeChange = (val) => {
  pageSize.value = val
  getTableData()
}

// 修改页面容量
const handleCurrentChange = (val) => {
  page.value = val
  getTableData()
}

// 查询
const getTableData = async() => {
  const table = await getErotableList({ page: page.value, pageSize: pageSize.value, ...searchInfo.value })
  if (table.code === 0) {
    tableData.value = table.data.list
    total.value = table.data.total
    page.value = table.data.page
    pageSize.value = table.data.pageSize

    // 数据更新后重新计算统计信息
    calculateModelStatistics()
  }
}

getTableData()

// ============== 表格控制部分结束 ===============

// 获取需要的字典 可能为空 按需保留
const setOptions = async () =>{
}

// 获取需要的字典 可能为空 按需保留
setOptions()


// 多选数据
const multipleSelection = ref([])
// 多选
const handleSelectionChange = (val) => {
  multipleSelection.value = val
}

// 删除行
const deleteRow = (row) => {
  ElMessageBox.confirm('确定要删除吗?', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(() => {
    deleteErotableFunc(row)
  })
}

// 多选删除
const onDelete = async() => {
  ElMessageBox.confirm('确定要删除吗?', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async() => {
    const IDs = []
    if (multipleSelection.value.length === 0) {
      ElMessage({
        type: 'warning',
        message: '请选择要删除的数据'
      })
      return
    }
    multipleSelection.value &&
    multipleSelection.value.map(item => {
      IDs.push(item.ID)
    })
    const res = await deleteErotableByIds({ IDs })
    if (res.code === 0) {
      ElMessage({
        type: 'success',
        message: '删除成功'
      })
      if (tableData.value.length === IDs.length && page.value > 1) {
        page.value--
      }
      getTableData()
    }
  })
}

// 行为控制标记（弹窗内部需要增还是改）
const type = ref('')

// 更新行
const updateErotableFunc = async(row) => {
  const res = await findErotable({ ID: row.ID })
  type.value = 'update'
  if (res.code === 0) {
    formData.value = res.data
    dialogFormVisible.value = true
  }
}


// 删除行
const deleteErotableFunc = async (row) => {
  const res = await deleteErotable({ ID: row.ID })
  if (res.code === 0) {
    ElMessage({
      type: 'success',
      message: '删除成功'
    })
    if (tableData.value.length === 1 && page.value > 1) {
      page.value--
    }
    getTableData()
  }
}

// 弹窗控制标记
const dialogFormVisible = ref(false)

// 打开弹窗
const openDialog = () => {
  type.value = 'create'
  dialogFormVisible.value = true
}

// 关闭弹窗
const closeDialog = () => {
  dialogFormVisible.value = false
  formData.value = {
    eroPartModel: '',
    eroPartId: '',
    useTimes: undefined,
    operationDays: undefined,
    operationDate: new Date(),
    syncDate: new Date(),
  }
}
// 弹窗确定
const enterDialog = async () => {
  btnLoading.value = true
  elFormRef.value?.validate( async (valid) => {
    if (!valid) return btnLoading.value = false
    let res
    switch (type.value) {
      case 'create':
        res = await createErotable(formData.value)
        break
      case 'update':
        res = await updateErotable(formData.value)
        break
      default:
        res = await createErotable(formData.value)
        break
    }
    btnLoading.value = false
    if (res.code === 0) {
      ElMessage({
        type: 'success',
        message: '创建/更改成功'
      })
      closeDialog()
      getTableData()
    }
  })
}

const detailFrom = ref({})

// 查看详情控制标记
const detailShow = ref(false)


// 打开详情弹窗
const openDetailShow = () => {
  detailShow.value = true
}


// 打开详情
const getDetails = async (row) => {
  // 打开弹窗
  const res = await findErotable({ ID: row.ID })
  if (res.code === 0) {
    detailFrom.value = res.data
    openDetailShow()
  }
}


// 关闭详情弹窗
const closeDetailShow = () => {
  detailShow.value = false
  detailFrom.value = {}
}

// 查看全部型号
const viewAllModels = () => {
  ElMessage({
    type: 'info',
    message: '查看全部型号功能'
  })
}

// 计算型号统计信息
const calculateModelStatistics = () => {
  if (!tableData.value || tableData.value.length === 0) {
    modelStats.value = {
      totalModels: 0,
      avgUseTimes: 0,
      avgActiveDays: 0,
      monthlyGrowth: 0,
      useTimesChange: 0,
      activeDaysChange: 0
    }
    popularModels.value = []
    return
  }

  // 计算基本统计数据
  const useTimesSum = tableData.value.reduce((sum, item) => sum + item.useTimes, 0)
  const operationDaysSum = tableData.value.reduce((sum, item) => sum + item.operationDays, 0)

  modelStats.value = {
    totalModels: tableData.value.length,
    avgUseTimes: useTimesSum / tableData.value.length,
    avgActiveDays: operationDaysSum / tableData.value.length,
    // 模拟增长率数据
    monthlyGrowth: Math.floor(Math.random() * 10) + 1,
    useTimesChange: Math.floor(Math.random() * 5) + 1,
    activeDaysChange: Math.floor(Math.random() * 8) + 1
  }

  // 计算热门型号 (按使用次数排序)
  popularModels.value = [...tableData.value].sort((a, b) => b.useTimes - a.useTimes).slice(0, 5)

  // 绘制图表
  drawModelChart()
}

// 绘制型号统计图表
const drawModelChart = () => {
  if (!modelChartRef.value) return

  // 销毁旧图表
  if (modelChart) {
    modelChart.dispose()
  }

  // 准备图表数据
  const modelData = tableData.value.length > 0 ?
      tableData.value.map(item => ({
        name: item.eroPartModel,
        value: item.useTimes
      })) : []

  // 创建新图表
  modelChart = echarts.init(modelChartRef.value)

  let option = {}

  if (chartType.value === 'pie') {
    // 饼图配置
    option = {
      title: {
        text: '型号使用次数分布',
        left: 'center'
      },
      tooltip: {
        trigger: 'item',
        formatter: '{a} <br/>{b}: {c} ({d}%)'
      },
      legend: {
        orient: 'vertical',
        left: 'left',
        data: modelData.map(item => item.name)
      },
      series: [
        {
          name: '使用次数',
          type: 'pie',
          radius: '60%',
          center: ['50%', '60%'],
          data: modelData,
          emphasis: {
            itemStyle: {
              shadowBlur: 10,
              shadowOffsetX: 0,
              shadowColor: 'rgba(0, 0, 0, 0.5)'
            }
          }
        }
      ]
    }
  } else {
    // 柱状图配置
    option = {
      title: {
        text: '型号使用次数统计',
        left: 'center'
      },
      tooltip: {
        trigger: 'axis'
      },
      legend: {
        data: ['使用次数']
      },
      xAxis: {
        data: modelData.map(item => item.name)
      },
      yAxis: {},
      series: [
        {
          name: '使用次数',
          type: 'bar',
          data: modelData.map(item => item.value)
        }
      ]
    }
  }

  // 渲染图表
  modelChart.setOption(option)

  // 窗口大小变化时重新渲染
  window.addEventListener('resize', () => {
    modelChart.resize()
  })
}

// 组件挂载时初始化图表
onMounted(() => {
  drawModelChart()
})

// 组件更新时重新计算统计数据
onUpdated(() => {
  if (tableData.value && tableData.value.length > 0) {
    calculateModelStatistics()
  }
})

</script>

<style scoped>
/* 统计面板样式 */
.gva-statistics-panel {
  margin-bottom: 20px;
  padding: 20px;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
}

.stat-card-container {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}

.stat-card {
  flex: 1;
  min-width: 240px;
  display: flex;
  flex-direction: column;
}

.stat-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.stat-card-header span {
  font-weight: bold;
  font-size: 16px;
}

.icon-large {
  font-size: 24px;
  color: #409EFF;
}

.stat-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.stat-value {
  font-size: 36px;
  font-weight: bold;
  color: #303133;
  margin-bottom: 10px;
}

.stat-trend {
  font-size: 14px;
  color: #606266;
}

.trend-up {
  color: #67c23a;
}

.trend-down {
  color: #f56c6c;
}

.chart-card {
  margin-bottom: 20px;
}

.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.chart-container {
  height: 300px;
}

.popular-models-card {
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.popular-models-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.model-item {
  display: flex;
  padding: 10px;
  border-radius: 4px;
  background-color: #f5f7fa;
}

.model-rank {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #409EFF;
  color: #fff;
  font-weight: bold;
  margin-right: 15px;
}

.model-info {
  flex: 1;
}

.model-name {
  font-weight: bold;
  margin-bottom: 5px;
}

.model-metrics {
  font-size: 14px;
  color: #606266;
}
</style>